CN110396261A - A kind of preparation process of high-strength corrosion-resisting PVC particle - Google Patents
A kind of preparation process of high-strength corrosion-resisting PVC particle Download PDFInfo
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- CN110396261A CN110396261A CN201910828032.3A CN201910828032A CN110396261A CN 110396261 A CN110396261 A CN 110396261A CN 201910828032 A CN201910828032 A CN 201910828032A CN 110396261 A CN110396261 A CN 110396261A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/04—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08L27/06—Homopolymers or copolymers of vinyl chloride
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K2003/026—Phosphorus
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Abstract
The invention discloses a kind of high-strength corrosion-resisting PVC particle and its preparation processes, the PVC particle of the high-strength corrosion-resisting, it is composed of the following parts by weight: PVC with high: 1000 parts, plasticizer: 100-200 parts, filler: 150-300 parts, 50-100 parts of stabilizer, 80-150 parts of lubricant, 50-100 parts of fire retardant, 50-100 parts of processing aid, 30-60 parts of colorant, obtained PVC particle has high-intensitive and corrosion resistance.
Description
Technical field
The invention belongs to PVC particle production field, in particular to a kind of high-strength corrosion-resisting PVC particle and its preparation process.
Technical background
Corvic (full name Polyvinylchlorid, abbreviation PVC) main ingredient is polyvinyl chloride, is additionally incorporated
Other compositions enhance its heat resistance, toughness, ductility etc..It is liked deeply in the world today, it is rather popular and also by
A kind of widely applied synthetic material.Its global usage amount is in second in various synthetic materials.
PVC is a kind of polymeric material of vinyl in fact.Briefly, in the function of current chemistry point occurs for the aqueous solution of salt
Solution.This process can generate chlorine, caustic soda and hydrogen.Refining, cracking petrol or gasoline can generate ethylene.When chlorine and ethylene mix
Afterwards, dichloroethylene will be generated；Dichloroethylene can convert generation chlorinated ethylene again, it is the basic composition portion of polyvinyl chloride
Point.Chlorinated ethylene molecule is linked together and constitutes polyvinyl chloride chain by polymerization process.The polychlorostyrene second generated in this way
Alkene is white powdered.It cannot be used alone, but can mix with other ingredients and generate many products.
Polyvinyl chloride resin is by two temperature changes (melting temperature and decomposition temperature) in heating process.Decomposition temperature is low
In melting temperature, that is to say, that polyvinyl chloride resin does not melt when heated just has begun decomposition, therefore polyvinyl chloride resin is can not to use heat
Plastic method machine-shaping, it is necessary to be designed after being modified processing, its decomposition temperature is allowed to be higher than melting temperature, guarantee PVC
Resin work in-process melt-flowable just needs at this time without decomposing plus the modifying agent of some stabilities either changes processing
Method prevents performance decomposition.
Polyvinyl chloride resin and various additives are made after modified PVC particle, can be stored, be transported with semi-finished product form
Defeated and machine-shaping is widely applied industrial product, daily necessities, flooring laminate, floor tile, people as a kind of important raw material of industry
Fabricate-leather, tubing, wire and cable, packaging film, bottle, foamed material, sealing material etc..
The main problem in PVC prilling is the intensity of PVC particle and anticorrosive after the various altered contents of addition at present
Property can decline, therefore be badly in need of a kind of new formula and technique to produce the PVC particle with higher intensity and corrosion resistance.
Summary of the invention
In view of the above deficiencies, the present invention discloses a kind of high-strength corrosion-resisting PVC particle and its preparation process.
First direction of the invention, a kind of high-strength corrosion-resisting PVC particle is described below.
A kind of PVC particle of high-strength corrosion-resisting, is composed of the following parts by weight:
The degree of polymerization of the PVC with high is more than or equal to 2500；
The plasticizer be selected from dioctyl phthalate, n-butyl phthalate, diisobutyl phthalate,
One of trioctyl trimellitate (TOTM), epoxidized soybean oil, chlorinated paraffin, tributyl 2-acetylcitrate are a variety of；
The filler is selected from powdered whiting, precipitated calcium carbonate, talcum powder, mica, kaolin, wollastonite, montmorillonite
One of or it is a variety of；
The stabilizer is selected from calcium zinc stabilizer, barium zinc stabilizer, lead salt stabilizer, organic tin stabilizer, rare earth-stabilized
One of agent is a variety of；
The lubricant is selected from one of atoleine, microcrystalline wax, high melting point paraffin, polyethylene wax or a variety of；
Described the fire retardant is in triethyl phosphate, tricresyl phosphate, algaroth, microcapsule red phosphorus, calcium aluminate
It is one or more；
The processing aid is selected from one of impact modifier MBS, impact modifier ACR or a variety of.
Preferably, the PVC particle of above-mentioned a kind of high-strength corrosion-resisting, is composed of the following parts by weight:
The degree of polymerization of the PVC with high is more than or equal to 3000；
The plasticizer is selected from dioctyl phthalate, n-butyl phthalate, diisobutyl phthalate
One of or it is a variety of；
The filler is selected from one of powdered whiting, precipitated calcium carbonate, talcum powder, mica or a variety of；
The stabilizer is selected from one of calcium zinc stabilizer, organic tin stabilizer, rare-earth stabilizer or a variety of；
The lubricant is selected from one of microcrystalline wax, high melting point paraffin, polyethylene wax or a variety of；
Described the fire retardant be selected from tricresyl phosphate, algaroth, microcapsule red phosphorus, one of or it is a variety of；
The processing aid is selected from one of impact modifier MBS, impact modifier ACR or a variety of.
Preferably, the PVC particle of above-mentioned a kind of high-strength corrosion-resisting, is composed of the following parts by weight:
The degree of polymerization of the PVC with high is more than or equal to 3300；
The plasticizer is selected from dioctyl phthalate, n-butyl phthalate, diisobutyl phthalate
One of or it is a variety of；
The filler is selected from one of powdered whiting, precipitated calcium carbonate, talcum powder, mica or a variety of；
The stabilizer is selected from one of calcium zinc stabilizer, organic tin stabilizer, rare-earth stabilizer or a variety of；
The lubricant is selected from one of microcrystalline wax, high melting point paraffin, polyethylene wax or a variety of；
Described the fire retardant be selected from tricresyl phosphate, algaroth, microcapsule red phosphorus, one of or it is a variety of.
The processing aid is selected from one of impact modifier MBS, impact modifier ACR or a variety of.
Preferably, the PVC particle of a kind of high-strength corrosion-resisting, is composed of the following parts by weight:
The degree of polymerization of the PVC with high is more than or equal to 3300；
The plasticizer is dioctyl phthalate: n-butyl phthalate=2:1-1:2 (weight ratio)；
The filler is powdered whiting: precipitated calcium carbonate=3:1-1:1 (weight ratio)；
The stabilizer is calcium zinc stabilizer: organic tin stabilizer=1:3-1:1 (weight ratio)；
The lubricant is selected from microcrystalline wax: high melting point paraffin=1:1 (weight ratio)；
Described the fire retardant is selected from one of tricresyl phosphate, algaroth, microcapsule red phosphorus or a variety of；
The processing aid is selected from one of impact modifier MBS, impact modifier ACR or a variety of.
Preferably, the PVC particle of above-mentioned a kind of high-strength corrosion-resisting, is composed of the following parts by weight:
The degree of polymerization of the PVC with high is more than or equal to 3300；Compared with common PVC, it has a variety of excellent
Performance, such as higher resilience, lower compression set, excellent heat-resistant deforming performance, higher tensile strength with
And excellent wearability, tear resistance, weather-proof, oil resistant, heat-resisting, cold-resistant, ozone resistance etc..
The plasticizer is dioctyl phthalate: n-butyl phthalate=1:1 (weight ratio)；This proportion master
Act on two o'clock: first is that the melting temperature and melt viscosity of polymer are reduced, to reduce its processing temperature；Two are to confer to gather
Close Tetramune flexibility, elasticity and high- and low-temperature resistance performance.
The filler is powdered whiting: precipitated calcium carbonate=2:1 (weight ratio)；Be added this proportion filler be for
Reduce the cost of plastic products, at the same can also change the heat resistance of product, rigidity, hardness, dimensional stability, creep shape,
The performances such as wearability, anti-flammability, smoke elimination, degradability, water resistance, electric conductivity.
The stabilizer is calcium zinc stabilizer: organic tin stabilizer=1:2 (weight ratio)；The stabilizer energy of this proportion is added
It is enough modified processing, prevents from thermally decomposing, while light, oxygen, heavy metal ion can also be inhibited to generate aging to polyvinyl chloride, thus
Increase its stability, prolongs its service life.
The lubricant is selected from microcrystalline wax: high melting point paraffin=1:1 (weight ratio)；The lubricant that this proportion is added can
The frictional force between material and process equipment is substantially reduced, to reduce the flow resistance of melt, melt viscosity, improve melt
Mobility increases surface gloss.
Described the fire retardant is microcapsule red phosphorus；Microencapsulated powder oil fire retardant is also known as efficient Wrapped up Phosphorus Fire Retardant, letter
Claim CRP.Red phosphorus content >=85%, 5~10 μm of red phosphorus fineness.Aubergine powder, relative density 2.1, bulk density 0.6g/cm3.
More difficult moisture absorption, water imbibition < 1.2%.Self-ignition point >=300 DEG C.It is good with resin and rubber mix, it does not influence to solidify or vulcanize work
Skill does not release ammonia.Excellent electrical properties.It is nontoxic.
The processing aid is selected from one of impact modifier MBS, impact modifier ACR or a variety of.MBS resin both may be used
To keep the transparency of PVC to greatest extent while toughening.
Preferably, the PVC particle of above-mentioned a kind of high-strength corrosion-resisting, the processing aid are impact modifier ACR.ACR
The shock resistance of PVC can be improved by spoke greatly, while keep its intensity substantially, and the fluidity of molten of PVC, thermal change can be obviously improved
Shape, weatherability and product surface gloss.
Second direction of the invention, the preparation process of the PVC particle of above-mentioned high-strength corrosion-resisting is described below.
The preparation process of the PVC particle of above-mentioned high-strength corrosion-resisting, comprising the following steps:
(1) delicate metering: by the formula each component of precise；
(2) batch mixer mixes:
A. PVC with high powder and colorant are added in batch mixer, starts batch mixer, speed of service 100-300
Rev/min, controlled at 70-90 DEG C, run 1-3min；
B. stabilizer and lubricant are added in batch mixer, controlled at 70-90 DEG C, runs 5-10min；
C. it is 400-800 revs/min that adjusting batch mixer, which is speed, and plasticizer is added, controls 100-120 DEG C of temperature, runs 5-
10min；
D. filler is added after plasticizer absorption is dry and fire retardant runs 2-4min；
E. it is eventually adding processing aid, runs 2-4min；
(3) mixing extrusion: screw extruder is added in above-mentioned mixed material and is kneaded, barrel temperature 110-160 is controlled
DEG C, 60-80 DEG C of extruder temperature, screw speed 0.5-1.5m/s, vacuum degree is -0.08Mpa；
(4) it pelletizes: selection cold cut or earnestly granulation.
Preferably, the preparation process of the PVC particle of above-mentioned high-strength corrosion-resisting, comprising the following steps:
(1) delicate metering: by the formula each component of precise；
(2) batch mixer mixes:
A. addition PVC with high powder and colorant in batch mixer, starting batch mixer, 200 turns of the speed of service/
Point, controlled at 80 DEG C, run 2min；
B. stabilizer and lubricant are added in the batch mixer of low speed operation, controlled at 80 DEG C, runs 8min；
C. adjusting the batch mixer speed of service is 600 revs/min, and plasticizer is added, and controls 110 DEG C of temperature, runs 8min；
D. filler and fire retardant is added after plasticizer absorption is dry, runs 3min；
E. it is eventually adding processing aid, runs 3min；
(3) mixing extrusion: screw extruder is added in above-mentioned mixed material and is kneaded, controls 130 DEG C of barrel temperature, spiral shell
Bar temperature 70 C, screw speed 0.9m/s, vacuum degree are -0.08Mpa；
(4) it pelletizes: cold cut granulation.
This process conditions is mild, and equipment requirement is not high, low in cost, is suitble to industrial production.
Compared with prior art, the method have the advantages that: the present invention by reasonably carry out PVC particle composition portion
Point adjustment, disclose a kind of configuration rationally, low in cost, the composition of the PVC particle of high rigidity highly corrosion resistant, and disclosing
A kind of equipment requirement is low, low in cost, and low energy consumption, the granulating process of environmental-friendly PVC, is suitble to heavy industrialization application.
Specific embodiment
The technical scheme of the invention is further explained by means of specific implementation.Those skilled in the art should be bright
, the described embodiments are merely helpful in understanding the present invention, should not be regarded as a specific limitation of the invention.
Experimental method used in following embodiments is conventional method unless otherwise specified.
The materials, reagents and the like used in the following examples is commercially available unless otherwise specified.
Embodiment 1
A kind of PVC particle of high-strength corrosion-resisting, is composed of the following parts by weight:
The degree of polymerization of the PVC with high is 2500；
The plasticizer is selected as dioctyl phthalate；
The filler is powdered whiting；
The stabilizer is calcium zinc stabilizer；
The lubricant is atoleine；
Described the fire retardant is triethyl phosphate；
The processing aid is impact modifier MBS.
Embodiment 2
A kind of PVC particle of high-strength corrosion-resisting, is composed of the following parts by weight:
The degree of polymerization of the PVC with high is 3000；
The plasticizer is n-butyl phthalate；
The filler is precipitated calcium carbonate；
The stabilizer is organic tin stabilizer；
The lubricant is high melting point paraffin；
Described the fire retardant is algaroth；
The processing aid is impact modifier ACR.
Embodiment 3
A kind of PVC particle of high-strength corrosion-resisting, is composed of the following parts by weight:
The degree of polymerization of the PVC with high is 3200；
The plasticizer is diisobutyl phthalate；
The filler is talcum powder；
The stabilizer is rare-earth stabilizer；
The lubricant is polyethylene wax；
Described the fire retardant is microcapsule red phosphorus；
The processing aid is impact modifier MBS.
Embodiment 4
A kind of PVC particle of high-strength corrosion-resisting, is composed of the following parts by weight:
The degree of polymerization of the PVC with high is 2500；
The plasticizer is trioctyl trimellitate (TOTM)；
The filler is kaolin；
The stabilizer is organic tin stabilizer；
The lubricant is polyethylene wax；
Described the fire retardant is calcium aluminate；
The processing aid is impact modifier ACR.
Embodiment 5
A kind of PVC particle of high-strength corrosion-resisting, is composed of the following parts by weight:
The degree of polymerization of the PVC with high is more than or equal to 3300；
The plasticizer is dioctyl phthalate: n-butyl phthalate=1:1 (weight ratio)；
The filler is powdered whiting: precipitated calcium carbonate=2:1 (weight ratio)；
The stabilizer is calcium zinc stabilizer: organic tin stabilizer=1:2 (weight ratio)；
The lubricant is selected from microcrystalline wax: high melting point paraffin=1:1 (weight ratio)；
Described the fire retardant is microcapsule red phosphorus；
The processing aid is impact modifier ACR.
Embodiment 6
A kind of preparation process of the PVC particle of high-strength corrosion-resisting, comprising the following steps:
(1) delicate metering: by the formula each component of precise；
(2) batch mixer mixes:
A. addition PVC with high powder and colorant in batch mixer, starting batch mixer, 200 turns of the speed of service/
Point, controlled at 80 DEG C, run 2min；
B. stabilizer and lubricant are added in the batch mixer of low speed operation, controlled at 80 DEG C, runs 8min；
C. adjusting the batch mixer speed of service is 600 revs/min, and plasticizer is added, and controls 110 DEG C of temperature, runs 8min；
D. filler and fire retardant is added after plasticizer absorption is dry, runs 3min；
E. it is eventually adding processing aid, runs 3min；
(3) mixing extrusion: screw extruder is added in above-mentioned mixed material and is kneaded, controls 130 DEG C of barrel temperature, spiral shell
Bar temperature 70 C, screw speed 0.9m/s, vacuum degree are -0.08Mpa；
(4) it pelletizes: cold cut granulation.
Embodiment 7
The PVC particle that will be formulated according to the method production example 1-5 of embodiment 6, is added conventionally produced control
Example (the hard PVC injection molding material purchased from three Cheng Su industry Co., Ltd of Zhejiang), performance is as shown in table 1 below:
Table 1
The hardness is measured according to PVC Rockwell method ball-indentation hardness method according to the method for ISO2039-1.
As can be seen from the above embodiments, the composition and production technology of disclosed PVC particle according to the present invention, can produce hard
The PVC particle of strong corrosion resistant is spent, and at low cost, is suitable for industrial production.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the principle of the present invention, several improvement can also be made, these improvement also should be regarded as of the invention
Protection scope.
Claims (8)
1. a kind of PVC particle of high-strength corrosion-resisting, which is characterized in that be composed of the following parts by weight:
1000 parts of PVC with high
100-200 parts of plasticizer
150-300 parts of filler
50-100 parts of stabilizer
80-150 parts of lubricant
50-100 parts of fire retardant
50-100 parts of processing aid
30-60 parts of colorant
The degree of polymerization of the PVC with high is more than or equal to 2500；
The plasticizer is selected from dioctyl phthalate, n-butyl phthalate, diisobutyl phthalate, inclined benzene
One of three sour three monooctyl esters, epoxidized soybean oil, chlorinated paraffin, tributyl 2-acetylcitrate are a variety of；
The filler is in powdered whiting, precipitated calcium carbonate, talcum powder, mica, kaolin, wollastonite, montmorillonite
It is one or more；
The stabilizer is in calcium zinc stabilizer, barium zinc stabilizer, lead salt stabilizer, organic tin stabilizer, rare-earth stabilizer
It is one or more；
The lubricant is selected from one of atoleine, microcrystalline wax, high melting point paraffin, polyethylene wax or a variety of；
Described the fire retardant in triethyl phosphate, tricresyl phosphate, algaroth, microcapsule red phosphorus, calcium aluminate one
Kind is a variety of；
The processing aid is selected from one of impact modifier MBS, impact modifier ACR or a variety of.
2. a kind of PVC particle of high-strength corrosion-resisting according to claim 1, which is characterized in that by following parts by weight
Group be grouped as:
1000 parts of PVC with high
120-180 parts of plasticizer
180-240 parts of filler
60-90 parts of stabilizer
100-140 parts of lubricant
60-90 parts of fire retardant
60-90 parts of processing aid
40-50 parts of colorant
The degree of polymerization of the PVC with high is more than or equal to 3000；
The plasticizer is in dioctyl phthalate, n-butyl phthalate, diisobutyl phthalate
It is one or more；
The filler is selected from one of powdered whiting, precipitated calcium carbonate, talcum powder, mica or a variety of；
The stabilizer is selected from one of calcium zinc stabilizer, organic tin stabilizer, rare-earth stabilizer or a variety of；
The lubricant is selected from one of microcrystalline wax, high melting point paraffin, polyethylene wax or a variety of；
Described the fire retardant be selected from tricresyl phosphate, algaroth, microcapsule red phosphorus, one of or it is a variety of;
The processing aid is selected from one of impact modifier MBS, impact modifier ACR or a variety of.
3. a kind of PVC particle of high-strength corrosion-resisting according to claim 2, which is characterized in that by following parts by weight
Group be grouped as:
1000 parts of PVC with high
150 parts of plasticizer
200 parts of filler
80 parts of stabilizer
120 parts of lubricant
80 parts of fire retardant
80 parts of processing aid
45 parts of colorant
The degree of polymerization of the PVC with high is more than or equal to 3300；
The plasticizer is in dioctyl phthalate, n-butyl phthalate, diisobutyl phthalate
It is one or more；
The filler is selected from one of powdered whiting, precipitated calcium carbonate, talcum powder, mica or a variety of；
The stabilizer is selected from one of calcium zinc stabilizer, organic tin stabilizer, rare-earth stabilizer or a variety of；
The lubricant is selected from one of microcrystalline wax, high melting point paraffin, polyethylene wax or a variety of；
Described the fire retardant be selected from tricresyl phosphate, algaroth, microcapsule red phosphorus, one of or it is a variety of；
The processing aid is selected from one of impact modifier MBS, impact modifier ACR or a variety of.
4. a kind of PVC particle of high-strength corrosion-resisting according to claim 3, which is characterized in that by following parts by weight
Group be grouped as:
1000 parts of PVC with high
150 parts of plasticizer
200 parts of filler
80 parts of stabilizer
120 parts of lubricant
80 parts of fire retardant
80 parts of processing aid
45 parts of colorant
The degree of polymerization of the PVC with high is more than or equal to 3300；
The plasticizer is dioctyl phthalate: n-butyl phthalate=2:1-1:2(weight ratio)；
The filler is powdered whiting: precipitated calcium carbonate=3:1-1:1(weight ratio)；
The stabilizer is calcium zinc stabilizer: organic tin stabilizer=1:3-1:1(weight ratio)；
The lubricant is selected from microcrystalline wax: high melting point paraffin=1:1(weight ratio)；
Described the fire retardant is selected from one of tricresyl phosphate, algaroth, microcapsule red phosphorus or a variety of;
The processing aid is selected from one of impact modifier MBS, impact modifier ACR or a variety of.
5. a kind of PVC particle of high-strength corrosion-resisting according to claim 4, which is characterized in that by following parts by weight
Group be grouped as:
1000 parts of PVC with high
150 parts of plasticizer
200 parts of filler
80 parts of stabilizer
120 parts of lubricant
80 parts of fire retardant
80 parts of processing aid
45 parts of colorant
The degree of polymerization of the PVC with high is more than or equal to 3300；
The plasticizer is dioctyl phthalate: n-butyl phthalate=1:1(weight ratio)；
The filler is powdered whiting: precipitated calcium carbonate=2:1(weight ratio)；
The stabilizer is calcium zinc stabilizer: organic tin stabilizer=1:2(weight ratio)；
The lubricant is selected from microcrystalline wax: high melting point paraffin=1:1(weight ratio)；
Described the fire retardant is microcapsule red phosphorus；
The processing aid is selected from one of impact modifier MBS, impact modifier ACR or a variety of.
6. a kind of PVC particle of high-strength corrosion-resisting according to claim 5, it is characterised in that the processing aid is anti-
Impact modifier ACR.
7. the preparation process of the PVC particle of high-strength corrosion-resisting according to claim 1-6, including following step
It is rapid:
(1) delicate metering: by the formula each component of precise；
(2) batch mixer mixes:
A. addition PVC with high powder and colorant in batch mixer, starting batch mixer, speed of service 100-300 turns/
Point, controlled at 70-90 DEG C, run 1-3min；
B. stabilizer and lubricant are added in batch mixer, controlled at 70-90 DEG C, runs 5-10min；
C. it is 400-800 revs/min that adjusting batch mixer, which is speed, and plasticizer is added, controls 100-120 DEG C of temperature, runs 5-
10min；
D. filler is added after plasticizer absorption is dry and fire retardant runs 2-4min；
E. it is eventually adding processing aid, runs 2-4min；
(3) mixing extrusion: screw extruder is added in above-mentioned mixed material and is kneaded, controls 110-160 DEG C of barrel temperature, spiral shell
60-80 DEG C of bar temperature, screw speed 0.5-1.5m/s, vacuum degree are -0.08Mpa；
(4) it pelletizes: selection cold cut or earnestly granulation.
8. a kind of preparation process of the PVC particle of high-strength corrosion-resisting according to claim 7, comprising the following steps:
(1) delicate metering: by the formula each component of precise；
(2) batch mixer mixes:
A. PVC with high powder and colorant are added in batch mixer, starts batch mixer, 200 revs/min of the speed of service, controls
Temperature processed is 80 DEG C, runs 2min；
B. stabilizer and lubricant are added in the batch mixer of low speed operation, controlled at 80 DEG C, runs 8min；
C. adjusting the batch mixer speed of service is 600 revs/min, and plasticizer is added, and controls 110 DEG C of temperature, runs 8min；
D. filler and fire retardant is added after plasticizer absorption is dry, runs 3min；
E. it is eventually adding processing aid, runs 3min；
(3) mixing extrusion: screw extruder is added in above-mentioned mixed material and is kneaded, controls 130 DEG C of barrel temperature, screw rod temperature
70 DEG C, screw speed 0.9m/s of degree, vacuum degree are -0.08Mpa；
(4) it pelletizes: cold cut granulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910828032.3A CN110396261A (en) | 2019-09-03 | 2019-09-03 | A kind of preparation process of high-strength corrosion-resisting PVC particle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910828032.3A CN110396261A (en) | 2019-09-03 | 2019-09-03 | A kind of preparation process of high-strength corrosion-resisting PVC particle |
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| CN112321964A (en) * | 2020-10-30 | 2021-02-05 | 山东国塑科技实业有限公司 | High-flame-retardant anti-aging polyvinyl chloride composite communication pipe and preparation method thereof |
| CN115785590A (en) * | 2022-12-02 | 2023-03-14 | 威海市泓淋电力技术股份有限公司 | High-strength tear-resistant polyvinyl chloride for injection molding and preparation method thereof |
| CN117362866A (en) * | 2023-09-26 | 2024-01-09 | 江苏华信高新材料有限公司 | PVC film with corrosion-resistant function |
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Address after: 215400 28 Yanglin Road, Shuangfeng town, Taicang City, Suzhou City, Jiangsu Province Applicant after: Suzhou Huameng Plastic Co.,Ltd. Address before: 215400 group 12, laozha village, Fuqiao Town, Taicang City, Suzhou City, Jiangsu Province Applicant before: Suzhou Huameng Plastic Co.,Ltd. |
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